Home / 9,089.62-13,629.47-6,128.06

Finding the Fourth Proportional to 9,089.62, 13,629.47 and 6,128.06

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Solution

The fourth proportional to 9,089.62, 13,629.47 and 6,128.06 is: 9,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.62 : 13,629.47 = 6,128.06 : x
  2. Step 2: Convert to fraction form
    9,089.62/13,629.47 = 6,128.06/x
  3. Step 3: Cross multiply
    9,089.62x = 13,629.47 × 6,128.06
  4. Step 4: Simplify right side
    9,089.62x = 83,522,111.14
  5. Step 5: Solve for x
    x = 83,522,111.14/9,089.62
  6. Step 6: Final answer
    x = 9,188.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.